github.com/docker/docker@v299999999.0.0-20200612211812-aaf470eca7b5+incompatible/pkg/parsers/kernel/kernel_unix_test.go (about)

     1  // +build !windows
     2  
     3  package kernel // import "github.com/docker/docker/pkg/parsers/kernel"
     4  
     5  import (
     6  	"fmt"
     7  	"testing"
     8  )
     9  
    10  func assertParseRelease(t *testing.T, release string, b *VersionInfo, result int) {
    11  	var (
    12  		a *VersionInfo
    13  	)
    14  	a, _ = ParseRelease(release)
    15  
    16  	if r := CompareKernelVersion(*a, *b); r != result {
    17  		t.Fatalf("Unexpected kernel version comparison result for (%v,%v). Found %d, expected %d", release, b, r, result)
    18  	}
    19  	if a.Flavor != b.Flavor {
    20  		t.Fatalf("Unexpected parsed kernel flavor.  Found %s, expected %s", a.Flavor, b.Flavor)
    21  	}
    22  }
    23  
    24  // TestParseRelease tests the ParseRelease() function
    25  func TestParseRelease(t *testing.T) {
    26  	assertParseRelease(t, "3.8.0", &VersionInfo{Kernel: 3, Major: 8, Minor: 0}, 0)
    27  	assertParseRelease(t, "3.4.54.longterm-1", &VersionInfo{Kernel: 3, Major: 4, Minor: 54, Flavor: ".longterm-1"}, 0)
    28  	assertParseRelease(t, "3.4.54.longterm-1", &VersionInfo{Kernel: 3, Major: 4, Minor: 54, Flavor: ".longterm-1"}, 0)
    29  	assertParseRelease(t, "3.8.0-19-generic", &VersionInfo{Kernel: 3, Major: 8, Minor: 0, Flavor: "-19-generic"}, 0)
    30  	assertParseRelease(t, "3.10.0-862.2.3.el7.x86_64", &VersionInfo{Kernel: 3, Major: 10, Minor: 0, Flavor: "-862.2.3.el7.x86_64"}, 0)
    31  	assertParseRelease(t, "3.12.8tag", &VersionInfo{Kernel: 3, Major: 12, Minor: 8, Flavor: "tag"}, 0)
    32  	assertParseRelease(t, "3.12-1-amd64", &VersionInfo{Kernel: 3, Major: 12, Minor: 0, Flavor: "-1-amd64"}, 0)
    33  	assertParseRelease(t, "3.8.0", &VersionInfo{Kernel: 4, Major: 8, Minor: 0}, -1)
    34  	// Errors
    35  	invalids := []string{
    36  		"3",
    37  		"a",
    38  		"a.a",
    39  		"a.a.a-a",
    40  	}
    41  	for _, invalid := range invalids {
    42  		expectedMessage := fmt.Sprintf("Can't parse kernel version %v", invalid)
    43  		if _, err := ParseRelease(invalid); err == nil || err.Error() != expectedMessage {
    44  			if err == nil {
    45  				t.Fatalf("Expected %q, got nil", expectedMessage)
    46  			}
    47  			t.Fatalf("Expected %q, got %q", expectedMessage, err.Error())
    48  		}
    49  	}
    50  }
    51  
    52  func assertKernelVersion(t *testing.T, a, b VersionInfo, result int) {
    53  	if r := CompareKernelVersion(a, b); r != result {
    54  		t.Fatalf("Unexpected kernel version comparison result. Found %d, expected %d", r, result)
    55  	}
    56  }
    57  
    58  // TestCompareKernelVersion tests the CompareKernelVersion() function
    59  func TestCompareKernelVersion(t *testing.T) {
    60  	assertKernelVersion(t,
    61  		VersionInfo{Kernel: 3, Major: 8, Minor: 0},
    62  		VersionInfo{Kernel: 3, Major: 8, Minor: 0},
    63  		0)
    64  	assertKernelVersion(t,
    65  		VersionInfo{Kernel: 2, Major: 6, Minor: 0},
    66  		VersionInfo{Kernel: 3, Major: 8, Minor: 0},
    67  		-1)
    68  	assertKernelVersion(t,
    69  		VersionInfo{Kernel: 3, Major: 8, Minor: 0},
    70  		VersionInfo{Kernel: 2, Major: 6, Minor: 0},
    71  		1)
    72  	assertKernelVersion(t,
    73  		VersionInfo{Kernel: 3, Major: 8, Minor: 0},
    74  		VersionInfo{Kernel: 3, Major: 8, Minor: 0},
    75  		0)
    76  	assertKernelVersion(t,
    77  		VersionInfo{Kernel: 3, Major: 8, Minor: 5},
    78  		VersionInfo{Kernel: 3, Major: 8, Minor: 0},
    79  		1)
    80  	assertKernelVersion(t,
    81  		VersionInfo{Kernel: 3, Major: 0, Minor: 20},
    82  		VersionInfo{Kernel: 3, Major: 8, Minor: 0},
    83  		-1)
    84  	assertKernelVersion(t,
    85  		VersionInfo{Kernel: 3, Major: 7, Minor: 20},
    86  		VersionInfo{Kernel: 3, Major: 8, Minor: 0},
    87  		-1)
    88  	assertKernelVersion(t,
    89  		VersionInfo{Kernel: 3, Major: 8, Minor: 20},
    90  		VersionInfo{Kernel: 3, Major: 7, Minor: 0},
    91  		1)
    92  	assertKernelVersion(t,
    93  		VersionInfo{Kernel: 3, Major: 8, Minor: 20},
    94  		VersionInfo{Kernel: 3, Major: 8, Minor: 0},
    95  		1)
    96  	assertKernelVersion(t,
    97  		VersionInfo{Kernel: 3, Major: 8, Minor: 0},
    98  		VersionInfo{Kernel: 3, Major: 8, Minor: 20},
    99  		-1)
   100  }